Crazy Frog is a fictional character created in 2003 by Swedish actor and musician Erik Wernquist. Originally known as "The Annoying Thing," Crazy Frog became famous for its catchy ringtone and animated music videos. The character is depicted as a small, blue frog wearing goggles and a bell, often seen riding a motorcycle. The most popular song associated with Crazy Frog is a remix of Benny Benassi's "Satisfaction," which topped charts in several countries. The character's popularity led to merchandise, video games, and even a television series, making Crazy Frog a notable figure in early 2000s pop culture.